Adjustable construction site display board fixing device

Abstract

The utility model discloses an adjustable construction site display board fixing device which comprises an upper chuck and a lower chuck. According to the adjustable construction site display board fixing device, the front side of a first vertical rod and the front side of a second vertical rod are fixedly connected with first sliding rails, sliding grooves are slidably connected to the first sliding rails, second sliding rails are fixedly connected to the sliding grooves, the top ends of the second sliding rails and the sliding grooves are jointly and fixedly connected with upper chucks, and the second sliding rails are slidably connected with lower chucks; the lower portion of the lower clamping head is in threaded connection with two first threaded rotary knobs, a first cross connecting piece and a second cross connecting piece are matched with a T-shaped movable groove and a T-shaped movable column, so that the first vertical rod and the second vertical rod are connected into a whole and can be movably unfolded, and therefore the display board fixing device is suitable for fixing display boards with different widths; and meanwhile, the lower clamping head slides on the upper second sliding rail, so that the distance between the lower clamping head and the upper clamping head is adjusted, the display boards with different heights are fixed, and the display board fixing device can be matched with the display boards with different sizes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of display board, specifically adjustable construction site display board fixing device. BACKGROUND

[0002] Display board refers to the board-shaped medium used for publishing and displaying information, which is made of paper, new materials and metal materials. The picture of the display board is made of back adhesive material, and matte film or bright film can be selected according to the brightness of the use site and personal preference.

[0003] In the construction site, display boards are usually set up to display construction precautions, construction progress and construction conditions. However, the existing display boards are mostly fixed on the ground by a fixed frame, and the board surface is fixed, which cannot adapt to the installation and display of display boards of different sizes. Therefore, an adjustable construction site display board fixing device is proposed to optimize the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an adjustable construction site display board fixing device to solve the problem that the existing display board fixing device cannot better adapt to the fixation of display boards of different sizes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An adjustable construction site display board fixing device comprises first and second vertical rods arranged in parallel, the back of each vertical rod is provided with an avoiding groove, a T-shaped movable slot is formed in the avoiding groove of each vertical rod, the top of each avoiding groove is connected with a first and a second cross connecting piece, the middle part of each cross connecting piece is hingedly connected with each other, the hinge part of each cross connecting piece is provided with an avoiding part on the opposite side, so that the two ends of each cross connecting piece are flush with each other, a T-shaped movable column is fixedly connected with the end of each cross connecting piece, the T-shaped movable column is inserted into the corresponding T-shaped movable slot and matched with the T-shaped movable slot, the front side of each vertical rod is fixedly connected with a first sliding rail, a sliding groove is slidingly connected with the first sliding rail, a second sliding rail is fixedly connected with the sliding groove, an upper clamp is fixedly connected with the top end of the second sliding rail and the sliding groove, a lower clamp is slidingly connected with the second sliding rail, two first screw knobs are threadedly connected with the lower part of the lower clamp, a threaded hole is formed in the lower clamp for threadedly connecting the first screw knob, the first screw knob is abutted against the second sliding rail, two second screw knobs are threadedly connected with the bottom of the sliding groove, a threaded hole is formed in the sliding groove for threadedly connecting the second screw knob, the second screw knob is abutted against the first sliding rail.

[0007] As a further embodiment of this utility model: the upper clamp and the lower clamp together hold the display board.

[0008] As a further embodiment of this utility model: the bottom ends of the first upright and the second upright are hinged together with a bottom rod, and the side walls of the first upright and the second upright are hinged with a support rod. A movable pin passes through the bottom of the support rod, and the bottom end of the support rod is provided with a through hole for the movable pin to pass through and move.

[0009] As a further embodiment of this utility model: a circular piece is fixedly connected to the end of the movable pin, and a tension spring is fixedly connected between the circular piece and the support rod. The tension spring is sleeved on the outside of the movable pin, and insertion holes are opened on the first upright, the second upright and the bottom rod corresponding to the movable pin.

[0010] As a further improvement of this utility model: each end of the base rod is hinged to a connecting rod, and the ends of the connecting rods are all hinged to a connecting seat.

[0011] As a further embodiment of this utility model: the ends of the connecting rod and the connecting seat are both fixedly connected to worm gears, a worm is rotatably connected to the connecting seat, the worm passes through the two worm gears, the worm is simultaneously connected to the two worm gears for transmission, and a handle is fixedly connected to the end of the worm.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model uses the first and second cross connectors, along with the T-shaped movable groove and T-shaped movable column, to connect the first and second uprights into a whole, which can be moved and unfolded to accommodate display boards of different widths. At the same time, the lower clamp slides on the upper second slide rail to adjust the distance between the lower and upper clamps, thereby accommodating display boards of different heights. This allows the device to accommodate the fixing of display boards of different sizes.

[0014] This invention allows for adjustment of the display panel height by sliding a groove on a first slide rail and locking it in place with a second threaded knob.

[0015] The base rod of this utility model is hinged to the first and second uprights and unfolds, and is supported and limited by the support rod, so that the first and second uprights are erected. The connecting rod can form an auxiliary extension support at the tail end of the base rod, thereby making the first and second uprights more stable.

[0016] The bottom rod, the first vertical rod and the second vertical rod can be folded mutually, the supporting rod can be accommodated through the switching of the movable pin corresponding to different jacks, meanwhile, the first vertical rod and the second vertical rod can be folded by approaching through the first cross connecting piece and the second cross connecting piece, the connecting rod can be driven by the worm drive worm gear, so that the opening and closing adjustment is carried out, so that the device has the folding function as a whole, so that the device can be folded and carried conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic diagram of an adjustable construction site exhibition board fixing device.

[0018] Fig. 2 It is a partial structure enlarged view of an adjustable construction site exhibition board fixing device.

[0019] Fig. 3 It is a partial structure perspective view of an adjustable construction site exhibition board fixing device.

[0020] Fig. 4 It is a rear perspective view of an adjustable construction site exhibition board fixing device.

[0021] Fig. 5 It is a partial structure sectional view of an adjustable construction site exhibition board fixing device

[0022] Fig. 6 It is an exhibition board fixing view of an adjustable construction site exhibition board fixing device.

[0023] In the figure: 1, handle; 2, first vertical rod; 3, second vertical rod; 4, avoiding groove; 5, T-shaped movable groove; 6, first cross connecting piece; 7, second cross connecting piece; 8, T-shaped movable column; 9, first sliding rail; 10, sliding groove; 11, second sliding rail; 12, upper chuck; 13, lower chuck; 14, first threaded knob; 15, second threaded knob; 16, exhibition board; 17, bottom rod; 18, supporting rod; 19, movable pin; 20, round piece; 21, tension spring; 22, jack; 23, connecting rod; 24, connecting seat; 25, worm gear; 26, worm. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0025] Please refer to Figs. 1-4The utility model discloses an adjustable construction site display board fixing device, including parallelly arranged first vertical rod 2 and second vertical rod 3, the back of first vertical rod 2 and second vertical rod 3 all are equipped with the avoidance groove 4, and first vertical rod 2 and second vertical rod 3 are opened with T movable slot 5 at the place corresponding avoidance groove 4, and the top of avoidance groove 4 is hinged with first cross connecting piece 6 and second cross connecting piece 7 respectively, and the middle part of first cross connecting piece 6 and second cross connecting piece 7 are hinged with each other, and the hinge of first cross connecting piece 6 and second cross connecting piece 7 opposite side is equipped with avoidance, so that the both ends of first cross connecting piece 6 and second cross connecting piece 7 are flush with each other, and the end of first cross connecting piece 6 and second cross connecting piece 7 is all fixedly connected with T movable column 8, and T movable column 8 is inserted into corresponding T movable slot 5 and is adapted with T movable slot 5, and the front side of first vertical rod 2 and second vertical rod 3 is all fixedly connected with first sliding rail 9, and first sliding rail 9 is slidably connected with sliding slot 10, and sliding slot 10 is fixedly connected with second sliding rail 11, and the top end of second sliding rail 11 and sliding slot 10 are commonly fixedly connected with upper collet 12, and second sliding rail 11 is slidably connected with lower collet 13, and the lower part of lower collet 13 is threadedly connected with two first screw knobs 14, and the screw hole for the thread connection of first screw knob 14 is opened in lower collet 13, and first screw knob 14 leans on second sliding rail 11, and the bottom of sliding slot 10 is threadedly connected with two second screw knobs 15, and the screw hole for the thread connection of second screw knob 15 is opened in sliding slot 10, and second screw knob 15 leans on first sliding rail 9.

[0026] By the cooperation of first cross connecting piece 6 and second cross connecting piece 7, T movable slot 5 and T movable column 8, first vertical rod 2 and second vertical rod 3 are connected into a whole, and can be expanded, thereby adapting to the fixing of display board 6 of different widths, and lower collet 13 slides on upper second sliding rail 11, thereby adjusting the distance between lower collet 13 and upper collet 12, thereby adapting to the fixing of display board 6 of different heights, so that the device can adapt to the fixing of display board 6 of different sizes.

[0027] By the sliding of sliding slot 10 on first sliding rail 9, second screw knob 15 is locked and fixed, thereby adjusting the height of display board 6.

[0028] Please refer to Figs. 4-5 The bottom end of first vertical rod 2 and second vertical rod 3 is commonly hinged with bottom rod 17, and the side wall of first vertical rod 2 and second vertical rod 3 is hinged with support rod 18, and the bottom of support rod 18 is penetrated through with movable pin 19, and the bottom end of support rod 18 is provided with perforation for the penetration and movement of movable pin 19.

[0029] The end of the movable pin 19 is fixedly connected with a circular sheet 20, and the circular sheet 20 and the supporting rod 18 are jointly fixedly connected with a tension spring 21, the tension spring 21 is sleeved on the outer side of the movable pin 19, and the first vertical rod 2, the second vertical rod 3 and the bottom rod 17 are all provided with a insertion hole 22 corresponding to the movable pin 19.

[0030] The end of the bottom rod 17 is hingedly connected with a connecting rod 23, and the end of the connecting rod 23 is jointly hingedly connected with a connecting seat 24.

[0031] The end of the connecting rod 23 and the connecting seat 24 is fixedly connected with a worm gear 25, the connecting seat 24 is rotatably connected with a worm 26, the worm 26 penetrates between the two worm gears 25, the worm 26 is in transmission connection with the two worm gears 25, and the end of the worm 26 is fixedly connected with the handle 1.

[0032] The bottom rod 17 is hingedly unfolded with the first vertical rod 2 and the second vertical rod 3, and is supported and limited by the supporting rod 18, so that the first vertical rod 2 and the second vertical rod 3 are erected, the connecting rod 23 can form auxiliary extension support at the tail end of the bottom rod 17, so that the first vertical rod 2 and the second vertical rod 3 are more stably supported.

[0033] The bottom rod 17, the first vertical rod 2 and the second vertical rod 3 can be folded, the supporting rod 18 can be accommodated by switching the movable pin 19 corresponding to different insertion holes 22, the first vertical rod 2 and the second vertical rod 3 can be folded by the first cross connecting piece 6 and the second cross connecting piece 7, and the connecting rod 23 can be driven by the worm 26 to drive the worm gear 25, so as to be opened and closed and adjusted, so that the device has a folding function, so that the device can be folded and carried conveniently.

[0034] Please refer to Fig. 6 The upper clamp head 12 and the lower clamp head 13 jointly clamp the display board 16.

[0035] The working principle of the utility model is:

[0036] In use, the worm 26 is rotated by rotating the handle 1, the worm 26 drives the worm gear 25 to rotate, so that the two connecting rods 23 are opened to each other, the worm 26 stops rotating, the worm gear 25 and the worm 26 form self-locking, so that the opening angle of the connecting rod 23 is maintained unchanged, at this time the first vertical rod 2 and the second vertical rod 3 are opened to each other, the first cross connecting piece 6 and the second cross connecting piece 7 drive the T-shaped movable column 8 to move in the T-shaped movable slot 5, maintain the connecting effect, at the same time the bottom rod 17 is away from each other, so that the device is expanded laterally, at this time the first vertical rod 2 and the second vertical rod 3 are lifted up, at the same time the movable pin 19 is pulled by the round sheet 20, so that the movable pin 19 is separated from the insertion hole 22 on the first vertical rod 2 and the second vertical rod 3, the supporting rod 18 is deflected, so that the movable pin 19 corresponds to the insertion hole 22 on the bottom rod 17, at this time the round sheet 20 is loosened and the movable pin 19 is inserted into the corresponding insertion hole 22 under the left and right of the tension spring 21, the first vertical rod 2 and the second vertical rod 3 are supported by the supporting rod 18 and the bottom rod 17, at this time the sliding groove 10 slides on the first sliding rail 9, so as to adjust the height of the upper clamp head 12, control the supporting height of the display plate 16, when the height is appropriate, the second threaded knob 15 is rotated to lock, at this time the display plate 16 is placed between the upper clamp head 12 and the lower clamp head 13, the top of the display plate 16 is close to the upper clamp head 12, the lower clamp head 13 slides on the second sliding rail 11, until the lower clamp head 13 and the upper clamp head 12 form clamping and fixing effect on the display plate 16, at this time the lower clamp head 13 is locked by the first threaded knob 14, so that the display plate 16 is fixed, and the display is carried out.

[0037] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable construction site billboard fixing device comprising a first upright (2) and a second upright (3) arranged in parallel, characterized in that: The back of the first vertical rod (2) and the second vertical rod (3) is provided with an avoiding groove (4), the first vertical rod (2) and the second vertical rod (3) are provided with a T-shaped movable slot (5) corresponding to the avoiding groove (4), the top of the avoiding groove (4) is hingedly connected with a first cross connecting piece (6) and a second cross connecting piece (7) respectively, the middle part of the first cross connecting piece (6) and the second cross connecting piece (7) are hingedly connected with each other, the end part of the first cross connecting piece (6) and the second cross connecting piece (7) are fixedly connected with a T-shaped movable column (8), the T-shaped movable column (8) is inserted into the corresponding T-shaped movable slot (5) and matched with the T-shaped movable slot (5), the front side of the first vertical rod (2) and the second vertical rod (3) is fixedly connected with a first sliding rail (9), the first sliding rail (9) is slidingly connected with a sliding groove (10), the sliding groove (10) is fixedly connected with a second sliding rail (11), the top end of the second sliding rail (11) and the sliding groove (10) are jointly fixedly connected with an upper clamp head (12), the second sliding rail (11) is slidingly connected with a lower clamp head (13), the lower part of the lower clamp head (13) is threadedly connected with two first threaded knobs (14), the bottom of the sliding groove (10) is threadedly connected with two second threaded knobs (15).

2. An adjustable construction site board fixing device according to claim 1, characterised in that: The upper clamp head (12) and the lower clamp head (13) jointly clamp a display board (16).

3. An adjustable construction site display board fixing device according to claim 1, characterised in that: The bottom end of the first vertical rod (2) and the second vertical rod (3) is hingedly connected with a bottom rod (17), the side wall of the first vertical rod (2) and the second vertical rod (3) is hingedly connected with a supporting rod (18), the bottom of the supporting rod (18) is penetrated by a movable pin (19).

4. An adjustable construction site board fixing device according to claim 3, characterised in that: The end part of the movable pin (19) is fixedly connected with a circular sheet (20), the circular sheet (20) and the supporting rod (18) are jointly fixedly connected with a tension spring (21), the tension spring (21) is sleeved on the outside of the movable pin (19), the first vertical rod (2), the second vertical rod (3) and the bottom rod (17) are provided with an insertion hole (22) corresponding to the movable pin (19).

5. An adjustable construction site board fixing device according to claim 3, characterised in that: The end part of the bottom rod (17) is hingedly connected with a connecting rod (23), the end part of the connecting rod (23) is jointly hingedly connected with a connecting seat (24).

6. An adjustable construction site board fixing device according to claim 5, wherein: The end part of the connecting rod (23) and the connecting seat (24) is fixedly connected with a worm wheel (25), the connecting seat (24) is rotatably connected with a worm (26), the worm (26) is simultaneously in transmission connection with the two worm wheels (25), the end part of the worm (26) is fixedly connected with a handle (1).

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